Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce02c4cdea4a65d2…

MALICIOUS

PDF

66.2 KB Created: 2020-12-10 03:49:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d325d0519236ff953f82f7b9281f005a SHA-1: 27fb4b1445ee1fbfe570c3f92a4fb8c48f9d9154 SHA-256: ce02c4cdea4a65d2fe91a6eb261b9e59ab49d2390abc0a4c700ea9aca08c9067
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafftec.ru/strik?utm_term=balancing+act+practice+key PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449965/normal_5fcc3e5759451.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368249/normal_5f91979b3a8b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5fa225a470535.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388424/normal_5faadf15d1f91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481540/normal_5fb556f37cd5c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/always_on_display_samsung_a40_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/entombment_of_christ_apah.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/69905324895.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/89377133769.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1022d239b07229131d226/t/5fd0c931fc93c51d16e6a43f/1607518513699/police_pursuit_today_oxnard.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/barca_vs_villarreal_5-_1.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/gaige_build_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/bob_evans_nutrition_facts_breakfast.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/how_to_disappear_book.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F8 5140 bytes
SHA-256: 217ac6f1d1360c5f0a8b819b4936e849b0f65258a3986ffec2182f019100a70c
font_01_sfnt_off0000d98f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98F 10212 bytes
SHA-256: 18916a9ab609eac40e2e60eaf7d93e4f2adcc5b52fbdd3bc9d37643ffcc6cd24